Dune::Fem::LinearOperator< DomainFunction, RangeFunction > Class Template Reference

abstract affine-linear operator More...

#include <dune/fem/operator/common/operator.hh>

Public Types
typedef DomainFunction	DomainFunctionType
	type of discrete function in the operator's domain
typedef DomainFunction	RangeFunctionType
	type of discrete function in the operator's range
typedef DomainFunction::RangeFieldType	DomainFieldType
	field type of the operator's domain
typedef RangeFunction::RangeFieldType	RangeFieldType
	field type of the operator's range

Public Member Functions
virtual bool	symmetric () const
virtual bool	positiveDefinite () const
virtual void	operator() (const DomainFunctionType &u, RangeFunctionType &w) const=0
	application operator More...
virtual void	finalize ()
	finalization of operator More...

Detailed Description

template<class DomainFunction, class RangeFunction = DomainFunction>
class Dune::Fem::LinearOperator< DomainFunction, RangeFunction >

abstract affine-linear operator

Operators map a discrete function onto another discrete function. Their interface is described by the abstract class Operator. Implementation should derive from LinearOperator to indicate that they model an affine linear operator of the form

\[ u\mapsto A\,u + b \]

with a linear Operator \(A\) and an affine translation \(b\).

Template Parameters

DomainFunction	type of discrete function for the domain
RangeFunction	type of discrete function for the range (defaults to DomainFunction)

An interface class:

Member Function Documentation

finalize()

virtual void Dune::Fem::Operator< DomainFunction, DomainFunction >::finalize ( )

inlinevirtualinherited

finalization of operator

Note

The default implementation is empty.

Reimplemented in Dune::Fem::SparseRowLinearOperator< DomainFunction, RangeFunction, Matrix >.

operator()()

virtual void Dune::Fem::Operator< DomainFunction, DomainFunction >::operator() ( const DomainFunctionType &  u, RangeFunctionType &  w  ) const

pure virtualinherited

application operator

Parameters

[in]	u	argument discrete function
[out]	w	destination discrete function

Note

This method has to be implemented by all derived classes.

positiveDefinite()

template<class DomainFunction , class RangeFunction = DomainFunction>

virtual bool Dune::Fem::LinearOperator< DomainFunction, RangeFunction >::positiveDefinite ( ) const

inlinevirtual

Return true if the Operator is positive definite.

symmetric()

template<class DomainFunction , class RangeFunction = DomainFunction>

virtual bool Dune::Fem::LinearOperator< DomainFunction, RangeFunction >::symmetric ( ) const

inlinevirtual

Return true if the Operator is symmetric.

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The documentation for this class was generated from the following file:

• dune/fem/operator/common/operator.hh